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04-19-2006 04:58 AM
04-19-2006 04:58 AM
LVM errors - SCSI Read error
Yesterday I saw these errors for a few hours then they went away. Does this appear to be a disk or controller error?
Apr 18 09:55
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
Apr 18 12:45
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
SCSI: Write error -- dev: b 31 0x05c000, errno: 126, resid: 2048,
blkno: 1305152, sectno: 2610304, offset: 1336475648, bcount: 2048.
SCSI: Read error -- dev: b 31 0x05c000, errno: 126, resid: 2048,
blkno: 8, sectno: 16, offset: 8192, bcount: 2048.
LVM: vg[1]: pvnum=2 (dev_t=0x1f05c000) is POWERFAILED
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
Apr 18 09:55
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
Apr 18 12:45
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
SCSI: Write error -- dev: b 31 0x05c000, errno: 126, resid: 2048,
blkno: 1305152, sectno: 2610304, offset: 1336475648, bcount: 2048.
SCSI: Read error -- dev: b 31 0x05c000, errno: 126, resid: 2048,
blkno: 8, sectno: 16, offset: 8192, bcount: 2048.
LVM: vg[1]: pvnum=2 (dev_t=0x1f05c000) is POWERFAILED
LVM: Recovered Path (device 0x1f05c000) to PV 2 in VG 1.
LVM: Restored PV 2 to VG 1.
1 REPLY 1
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04-19-2006 03:37 PM
04-19-2006 03:37 PM
Re: LVM errors - SCSI Read error
Hi Bill,
The error messages certainly indicates problem related to a scsi disk device and *not* with SCSI controller.
The device in question is /dev/dsk/c5t12d0
( dev: b 31 0x05c000 ).
The read & write errors are caused on account of the system error no 126 which means "error power failed". In fact, if scsi device driver's (sdisk) I/O request is timed-out, then LVM would show the device as "POWERFAILD" being not responding.
The device in this case is responding sometimes and sometimes not.
The default "sdisk" driver IO timeout is 30 secs. Certain disk arrays requires needs higher timeout value.
The value could be change using
# pvchange -t /dev/dsk/c5t12d0
Increasing IO timeout value in this case could work good.
The error messages certainly indicates problem related to a scsi disk device and *not* with SCSI controller.
The device in question is /dev/dsk/c5t12d0
( dev: b 31 0x05c000 ).
The read & write errors are caused on account of the system error no 126 which means "error power failed". In fact, if scsi device driver's (sdisk) I/O request is timed-out, then LVM would show the device as "POWERFAILD" being not responding.
The device in this case is responding sometimes and sometimes not.
The default "sdisk" driver IO timeout is 30 secs. Certain disk arrays requires needs higher timeout value.
The value could be change using
# pvchange -t
Increasing IO timeout value in this case could work good.
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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